Diisopropylethylamine → 3-{1-[6-(4-Methyl-2-oxo-2,3-dihydro-benzoxazole-6-carbonyl)-pyrimidin-4-yl]-piperidin-4-yl}-1,3-dihydroimidazo[4,5-c]quinolin-2-one

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Reaction Steps

134 mg (0.500 mmol) 3-piperidin-4-yl-1,3-dihydroimidazo[4,5-c]quinolin-2-one, 145 mg (0.500 mmol) 6-(6-chloropyrimidine-4-carbonyl)-4-methyl-3H-benzoxazol-2-one and 0.174 mL (1.00 mmol) DIPEA were stirred overnight in 5 mL DMF at RT. The mixture was purified by preparative HPLC-MS. The fractions containing the product were combined, the organic solvent was eliminated i. vac. and the aqueous phase remaining was neutralised with a 4N aqueous NaOH solution. The precipitate was suction filtered, washed with water and dried in the CAD.

Provenance & Evidence